Tamping machine



I -The mainobject ofthis invention is to pro Patented May 28, 1929 stares CORWILL JACKSON, OF CHICAGO, ILLINOIS.

V TAMPIN'G MACHINE.

' Application filed February 6.19%. serial No. 252,292.

vide an improved tie or ballast tamping ma chine for railway road beds which is easy to operate and veryefiicient.

Objects pertaining to details and economies of my invention will definitely appear from the description to follow. The invention is definedin the claims. a

A structure embodying the features of my invention is clearly illustrated in the accompanying-drawing, in which:

Fig/1 is a perspective View of my improved tamping machine shown in operative relation to a fragment of railway track.

Fig. 2 is a front elevation of the structure also in operative relation to a fragment of railway track;

Fig. 3 is a fragmentary plan View.

-Referring to the drawing, 1' represents the railway ties and 2 a rail of a railway track,

the ballast not being shown. My improved tamping machine compiises'a carriage designated generally by'the numeral?) and provided with a carrying wheel 4 at its front end adapted totravelupon a rail as2. Atits oppositef end. the carriage is provided with handles 5 b means of which the carriage may be trundle along upon the railand may be manipulated thereon with an oscillating movement to position and manipulate the tamper blades as will hereinafter appear.

The carriage is provided with a pair. of spaced cross rods 6 on the outer ends of which are mounted resilient supports 7 formed ofa plurality oflayers of belting or similar material,.forming a resilient smooth flexible support, having sufiicient rigidity, however, to normally retain its position.

I provide vibrating units which in the embodiment illustrated consist of motor hous ers-12 from pins 13 disposed centrally of the supports 7.

' Crossheads 14: are mounted on the housings and have upwardly projecting arms 15. The

. tamper blades 16 are mountedon the ends of the'crossheads in opposedpairs, the blades being spaced to embrace a tie and preferably having inwardly curved lower ends. The arms 17 project -'upwardly from the 'motor housings and are connected by a spring 18, the spring acting to yieldingly support the partslin upright position.

The handles 5 are pivoted. on one of the cross rods 6 and are adjustably supported on their pivots by means of a rod-like detent 19 adjustably mounted upon the handles by means of the straps 20 to coa'ct with the teeth of the segments 21 on the main or carrying frame. Springs 22 act to yieldingly hold this .detent rod into engagement with the teeth. A strap28 is provided to facilitate the disengagement of the rod. A pull on the strap disengages the detent rod so that the handle may be adjusted,'and when released the springs draw the detent into engagement,

This permits rapid adjustment of the handles for the particular working condition and for the convenience of the workman.

With the parts thus arranged the carriage is moved alongon the track to proper position and lowered to bring the blades into engagement with the ballast, allowing the same to rest thereon. The vibration occasioned by the motor results in a rapid and effectiveta-mping of ballast. Thevibrating elements being resiliently. and pivotally mounted relieves the operator of undue strain and vibration, and also allows limited independent movement of the units. The pivotal mounting permits the oscillation and manipulation of the carriage along the track to tilt the blades and the presentation of one or the other to the work so that the ballast is effectively worked under the ties.

I have illustrated'and described an embodiment whiehI have found highly satisfactory. I have not attempted to illustrateor describe various modifications and adaptations which I contemplateas I believe the disclosure made will enable those skilled'in the art to which my invention relates to embody or adapt the same as may be desired.

Havingthus described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a machine of the class described, the

combination of a carriage providedwith a combination of a carriage provided with a carrying wheel at one end adapted to travel uponarailway track and with handles mounted for vertical adjustment oppositely of said wheel, resilient support members mounted on said carriage, motors provided with shafts having unbalancing weights, housings for said motors and their shafts mounted on said I supports, cross heads mounted on said-motor housings, tamping blades mounted on said crossheads in opposed pairs, and a counter balancing spring connecting the upper ends of sald arms.

combination of a carriage provided with a carrying wheel at one end adapted to travel upon a railway track and with handles mounted for vertical adjustment oppositely of said wheel, resilient support members connected at their ends to said carriage, motors provided with shafts having unbalancing weights, housings for said motors and their shafts provided with hangers pivotally mounted on said supports intermediate their.

point of attachment to said carriage,crossheads mounted on said motor housings, and.

tamping blades mounted on said crosshead s in opposed pairs.

4. In a machine of the class described, the combination of-a carriage provided with a carrying wheel at one end adapted .to travel upon a railway track and with handles mounted for vertical adjustment oppositely of said- Wheel, resilient support members mounted on said carriage, motors provided with shafts having unbalancmg weights,

housings for said motors and their shafts ing unbalancing weights, housings for said motorsand their shafts provided with hangers pivotally mounted on said supports intermediate their pointof attachment to said carriage, cross heads mounted on said motor housings and provided with upwardly projecting arms, tamping blades mounted on -sa1d crossheads 1n opposed pairs, and a counterbalancing spring connecting the upper ends of said arms.

6. In a machine of the class described, the

combination of a supporting frame, resilient motors provided with shafts having unbalancing weights, housings for said motors and their shafts mounted on saidsupports, crossheads mounted on said motor housings and provided with upwardly projecting arms, tamping blades mounted on said crossheads in opposed pairs, and a counterbalancing spring connecting the upper ends of said arms.

7 In a machine of the class described, the combination of a supporting frame, resilient support members connected at their ends to said frame, motors provided with shafts hav ing unbalancmg weights, housings for said motors andtheirshafts provided with hangers pivotally mounted on said supports intermediate their point of-attachment to said carriage, crossheads mounted on said motor housings, and tamping blades mounted on said crossheads in opposed pairs. 3. In'a machine of the class described, the

j 8. In a machine of the class described, th combination of a supporting-frame, resilient support members mounted on said frame, m0- tors provided with shafts having unbalancing weights, housings for said motors and their shafts mounted on said supports, crossheads mounted on said motor housings, and

tamping blades mounted on said crossheads in opposed pairs.

9. In a machine of the class described, the

combination of a carriage provided with a wheel adapted to travel on a rail ofa railway track and with handles opposed to said wheel I whereby the carriage may be manipulated upon the rail, resilient support-members connected at their ends to said carriage, vibrating units pivotally mounted on said support:

members centrallyv thereof, tamper blades mounted on said vibrating units in. spaced relation, arms projecting upwardly from said vibrating units, and a spring connecting the 1 upper ends of said arms.

10. In a machine of the class described, the

combination of acarriageprovided'with a wheel adapted to travel on a rail of a railway carriage, tamper blades mounted on said ,vibratmg units in spaced relation, arms proectmg upwardly from sald v1bratmg:un1ts,

and a spring connecting the upper ends of:

said arms.

11. In a machine of the class'described, the combination of a carriage provided with awheel adapted to travel on a rail of arailway track and withhandles opposed to said "wheel whereby the carriage may be manipulated;

upon the rail, r'esilient'support members con- 4 nected at their ends to said carriage, vibrating units pivotally mounted on said support.

members centrally thereof, and tamper blades mounted on said vibrating units in spaced relation.

12. In a structure. of the class described,

the combination of a carriage provided with a wheel at one end and with an opposed handle whereby the carriage may be manipulated on a railway track, a pair of motors provided with housings and with unbalancing elements, and blades mounted in spaced relation to embrace a railway tie so that they are subject to the vibration of said motor housing-induced by said unbalancing elements, said motor housing having a pivotal and resilient connection to said carriage.

13. In a structure of the class described, the combination of a carriage provided with a carrying Wheel and with a handle whereby the carriage may be manipulated on said wheel, a flexible support mounted at its ends on said carriage, a vibrating element pivotally mounted on said support, and opposed tamper blades mounted on said vibrating element.

14. In a structure of the class described, the combination'of a carriage provided with a carrying wheel and witha handle whereby the carriage may be manipulated on said wheel, a vibrating element resiliently mounted on said carriage, and opposed tamper blades mounted on said vibrating element;

15. In a machine of the class described, the combination of a carriage provided with a wheel adapted to travel on a rail of a railway track and with handles opposed to said wheel whereby the carriage may be manipulated upon the rail, said handles being mounted for vertical adjustment, a resilient support member connected at its ends to said carriage, a vibrating unit pivotally mounted on said support member centrally thereof, and a tamper mounted on said vibrating unit.

16. In a machine of the class described, the combination of a carriage provided with a wheel adapted to travel on a railof a railway track and with handles opposed to said wheel whereby the carriage may be manipulated upon the rail, a resilient support member connected at its ends to said carriage, a vibrating unit pivotally mounted on said support member centrally thereof, and a tamper mounted on said vibrating unit.

17. In a structure of the class described, the combination of a carriage provided with a wheel at one end and with an opposed handle whereby the carriage may be manipulated on a railway track,a motor provided with a housing and with an unbalancing element, and a tamper mounted on said housing, said motor housing having a pivotal and resilient connection to said carriage.

In witness whereof I have hereunto set my hand. I

'CORWILL JACKSON. 

